Tiamat - Cellular Automata2.4.0 - App Store

Tiamat turns cellular automata into a creative, relaxing sandbox for patterns, rules, colors, and discovery.

Build living worlds from simple rules, then watch order, chaos, gliders, oscillators, and unexpected structures emerge. Start with familiar Game of Life-style behavior, import or export rulestrings, tune simulation speed, paint directly on the field, and save the fields, rules, gradients, and patterns you want to revisit.

What you can do in Tiamat:
- Explore Conway-like cellular automata with wrapped, borderless fields.
- Create, edit, save, import, and share rules with BS, SB, and HROT rulestring support.
- Paint cells by hand, place saved patterns, or generate random fields.
- Customize gradients and fading to make simulations easier to read and more beautiful to watch.
- Save favorite worlds, layers, rules, colors, and patterns for later experiments.
- Learn cellular automata concepts with built-in help and changelog articles.

Whether you are studying emergent systems, looking for generative art inspiration, or just want a calm mathematical sandbox, Tiamat gives you precise controls without getting in the way.

Version History Added French, Italian, Japanese, Korean, and Brazilian Portuguese localization. 2.4.0 Jun 25 - UX-improvements
- bug fixes 2.3.2 Feb 1 - Cross references between sandboxes - now you can find something interesting much easier (see in settings)
- Minor fixes and improvements 2.3.1 12/08/2025 - Brighter colors (P3 support)
- Added support of iOS 26 Liquid Glass UI
- Dropped iOS versions below iOS 26
- Other fixes and improvements 2.3.0 10/04/2025 - Fixed appearance of color interpolation buttons.
- Fixed gradient color updates. 2.2.1 10/14/2024 - Interpolation curves for color gradient
- iOS 18 compatibility
- Other fixes and improvements 2.2.0 10/13/2024 - Export multiple layers (in Rule-> Save)
- Import multiple layers (whereever you import rulestring)
- Rulestring notification help 2.1.4 05/17/2024 - Fixed popup market crash
- Fixed donation issues
- Improved stability 2.1.3 05/03/2024 Share your layer exporting it as a rulestring. 2.1.2 05/01/2024 - Support of rulestrings (BS, SB, HROT).
- Import rulestring to rule or layer. 2.1.1 04/30/2024 - New representation of transition function in rule editor.
- Discord link in feedback form.
- Option to do step forward/backward without fade.
- Automatically limit maximum speed to keep performance. 2.1.0 04/15/2024 - Fixed button labels in layers list for narrow phone displays.
- Improved random rule generation.
- Improved UI performance.
- Fixed crash in rule editor. 2.0.2 01/11/2024 - Fixed icons appearance on help pages.
- Your last used tool is saved now - you can start where you finished in your last session.
- Spanish localisation. 2.0.1 01/08/2024 - Some terminology was changed.
- Fully rebuilt interface (we hope it's more convenient and understandable now).
- Removed ads, but you are still able to support further development of Tiamat.
- All tools are presented on the main screen - you don't need to rove through weird menus.
- Updated tool icons - now they should be more understandable.
- Improved rule's pattern editor.
- Pattern transforms working more intuitively - you don't need calculate combinations of transfroms anymore.
- Support of system appearance.
- Feedback form (one way - we not able to answer if you don't provide any contacts).
- Removed UI orientation (if you need it - please reach us via the `Feedback` form).
- Improved experience with navigation through field.
- Step simulation forward/backward (only one step back now).
- Link to our Discord server where you can ask for new features, improvements or just discuss cellular automatas. 2.0.0 01/02/2024 - Improved user experience
- Fixed several bugs 1.6.2 07/25/2023 - Added German localization 1.6.1 06/15/2023 - now you can copy layers of a rule
- now you can save layers and load them later
- link to Discord channel in help
- fixed a bunch of bugs
- improved UX 1.6.0 06/14/2023 - Improved UX
- Fixed bugs 1.5.12 04/05/2023 Fixed problems with localisations 1.5.11 04/03/2023 - Improved UX
- Fixed bugs 1.5.10 03/17/2023 - Improved UX
- Fixed bugs 1.5.9 03/15/2023 - UX improvements 1.5.8 03/08/2023 - fixed problem with hiding ads banner
- UX improvements 1.5.7 02/20/2023 - Fix minor problems
- Improve user experience
- Minor optimisations 1.5.6 01/10/2023 - Fixed crashes
- Improved experience 1.5.5 01/08/2023